Speaking at the launch of his equality manifesto, Mr Corbyn said that after-work drinking “benefits men who don't feel the need to be at home looking after their children and it discriminates against women who will want to, obviously, look after the children that they have got".

A spokesman for the Jeremy for Labour campaign rejected claims that Mr Corbyn wanted to ban after-work drinks.

But he added: "He instead highlighted a concern among many women's groups and the head of the CBI that a male-led after-work networking culture in some workplaces can be detrimental to the career progression of female co-workers who can feel excluded, especially those women with caring responsibilities."